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[93.44.188.26]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-acb3cde06f8sm167165366b.61.2025.04.16.10.51.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Apr 2025 10:51:30 -0700 (PDT) From: Andrea della Porta X-Google-Original-From: Andrea della Porta Date: Wed, 16 Apr 2025 19:52:54 +0200 To: Stefan Wahren Cc: Andrea della Porta , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Florian Fainelli , Broadcom internal kernel review list , Lorenzo Pieralisi , Krzysztof Wilczynski , Manivannan Sadhasivam , Bjorn Helgaas , Linus Walleij , Catalin Marinas , Will Deacon , Bartosz Golaszewski , Derek Kiernan , Dragan Cvetic , Arnd Bergmann , Greg Kroah-Hartman , Saravana Kannan , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-gpio@vger.kernel.org, Masahiro Yamada , Herve Codina , Luca Ceresoli , Thomas Petazzoni , Andrew Lunn , Phil Elwell , Dave Stevenson , kernel-list@raspberrypi.com Subject: Re: [PATCH v8 10/13] arm64: dts: Add overlay for RP1 device Message-ID: References: Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Hi Stefan, On 13:38 Mon 14 Apr , Stefan Wahren wrote: > Hi Andrea, > > just a nit. Could you please add "broadcom:" to the subject? Consider it done. Many thanks, Andrea > > Am 19.03.25 um 22:52 schrieb Andrea della Porta: > > Define the RP1 node in an overlay. The inclusion tree is > > as follow (the arrow points to the includer): > > > > rp1.dtso > > ^ > > | > > rp1-common.dtsi ----> rp1-nexus.dtsi > > > > Signed-off-by: Andrea della Porta > > --- > > This patch can be considered optional, since it fills just the second > > scenario as detailed in [1], which is the RP1 DT node loaded from a dtb > > overlay by the FW at early boot stage. > > This may be useful for debug purpose, but as such not strictly necessary. > > > > [1] https://lore.kernel.org/all/CAMEGJJ0f4YUgdWBhxvQ_dquZHztve9KO7pvQjoDWJ3=zd3cgcg@mail.gmail.com/#t > > --- > > arch/arm64/boot/dts/broadcom/Makefile | 3 ++- > > arch/arm64/boot/dts/broadcom/rp1.dtso | 11 +++++++++++ > > 2 files changed, 13 insertions(+), 1 deletion(-) > > create mode 100644 arch/arm64/boot/dts/broadcom/rp1.dtso > > > > diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile > > index 4836c6da5bee..58293f9c16ab 100644 > > --- a/arch/arm64/boot/dts/broadcom/Makefile > > +++ b/arch/arm64/boot/dts/broadcom/Makefile > > @@ -13,7 +13,8 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-400.dtb \ > > bcm2837-rpi-3-b.dtb \ > > bcm2837-rpi-3-b-plus.dtb \ > > bcm2837-rpi-cm3-io3.dtb \ > > - bcm2837-rpi-zero-2-w.dtb > > + bcm2837-rpi-zero-2-w.dtb \ > > + rp1.dtbo > > subdir-y += bcmbca > > subdir-y += northstar2 > > diff --git a/arch/arm64/boot/dts/broadcom/rp1.dtso b/arch/arm64/boot/dts/broadcom/rp1.dtso > > new file mode 100644 > > index 000000000000..ab4f146d22c0 > > --- /dev/null > > +++ b/arch/arm64/boot/dts/broadcom/rp1.dtso > > @@ -0,0 +1,11 @@ > > +// SPDX-License-Identifier: (GPL-2.0 OR MIT) > > + > > +/dts-v1/; > > +/plugin/; > > + > > +&pcie2 { > > + #address-cells = <3>; > > + #size-cells = <2>; > > + > > + #include "rp1-nexus.dtsi" > > +}; >